My Garage
Search Without Vehicle
Search DIY Blog
Search DIY Blog
Search Without Vehicle
Recent
Suggested Categories
Search Using the Following Methods and Terms
Keywords
oil, brake pads, or rotors
Part Number or SKU
STPHME5W305Q, or EST-23432
Category & Keyword
Engine oil kit
Brand
Bosch, Borg Warner, or BMW
(877) 481-0208
Talk to an expert!
DIY Blog
Help Me
Track an order
Begin a return
Shipping policy
Wholesale
Contact our Service Team
FAQ
Careers
High Contrast Mode
My Account
0
Added To Your Cart
Go To Cart
You've qualified for
FREE SHIPPING
Item Already In Your Cart
CLEARANCE ITEMS ARE LIMITED TO ONE PER ORDER
Category
AC and Climate Control
Air Intake
Brake
Car Care and Detailing
Clutch and Flywheel
Cooling System
Coolant Expansion Tank
Coolant Level Sensors
Coolant Temperature Sensor
Cooling Fan
Cooling Hoses
Engine Coolant
Engine Coolant Pipe
Radiator
Thermostat
Engine Thermostat
Thermostat Housing Bolt
Water Pump
Drivetrain and Axle
Engine
Exhaust
Exterior Body
Fuel System
Interior Body
Merchandise and Accessories
Steering
Supplies and Hardware
Suspension
Tools
Transmission
Home
BMW
Thermostat
BMW 645Ci Thermostat Parts
Showing 4 of 4 results
▾
Filter by
Filter by Quality
All
Genuine
OE
OEM
Filter by Brand
All
Genuine BMW
Mahle
Wahler
Show Only
Kits
Parts
Available
In-stock
On sale
Clearance
Special kit pricing
Clear Filters
▾
Sort by
Avg. Customer Review
Price: Low to High
Price: High to Low
Newest
Most Popular
Clear Sort
OE
BMW Thermostat Assembly - Wahler 11537586885
101° C thermostat, includes housing and o-ring
545i, 550i, 550i GT, 550i GT xDrive, 550i xDrive, & more
7 Ratings
Available
In Stock
Ships Free
$81.99
QTY
Add to cart
OEM
BMW Thermostat Assembly - Mahle Behr 11537586885
101° C thermostat, includes housing and o-ring
545i, 550i, 550i GT, 550i GT xDrive, 550i xDrive, & more
9 Ratings
Available
In Stock
Ships Free
$80.59
QTY
Add to cart
BMW Thermostat Assembly - Genuine BMW 11537586885
105° C thermostat, includes housing and o-ring
545i, 550i, 550i GT, 550i GT xDrive, 550i xDrive, & more
1 Rating
Available
In Stock
Ships Free
$118.31
QTY
Add to cart
BMW Hex Bolt With Washer - Genuine BMW 07119904525
545i, 550i, 645Ci, 650i, 745i, 745Li, 750i, & more
Available
In Stock
$3.09
QTY
Add to cart
Get help answering any questions you have
Contact Us
Customer Service
Contact Us
Order Status & Tracking
Returns
Lifetime Replacement Guarantee
Shipping Policy
Deals & Coupons
FAQ
About FCP Euro
About Us
Privacy Policy
DIY Blog
Motorsports Program
OE Academy
We're Hiring!
Terms of Service
Accessibility Statement
Consumer Privacy Rights
Do Not Sell or Share My Personal Information
Special offers, news, & promos
Sign Up
4.7/5
© FCP Euro 2026. All rights reserved.
Version: 6b61a6b1c : 53a503b7d08d6a1584b68d28b71f3ec1f789121f
